Activation Types; Commissioning; Electrical System; Rotation Control - Wilo Sub TWU 3 HS Serie Einbau- Und Betriebsanleitung

COMMISSIONING

We also recommend installing a residual-cur-
rent-operated protection switch (RCD).
Local and national regulations must be observed
when connecting the pump.

5.6.2. Activation types

Direct activation
At full load, the motor protection should be set
to the rated current shown on the rating plate. At
partial load, we recommend that the motor pro-
tection be set 5 % above the current measured at
the operating point.
6. Commissioning
The "Commissioning" section contains all the im-
portant instructions for the operating personnel
for starting up and operating the pump.
The following conditions must be adhered to and
monitored:
• Installation type, including cooling (does a cooling
jacket have to be installed?)
• Operating parameters (for TWU 3-...-HS-ECP)
• Minimum water submersion/max. immersion
depth
These general conditions must also be checked
after a lengthy period without operation, and
any defects detected must be repaired!
Always keep this manual either by the pump
or in a place specially reserved for it, where it is
accessible for the entire operating personnel at
all times.
In order to prevent damage or serious injury when
commissioning the pump, the following points
must be observed:
• Commissioning of the pump may only be carried
out by qualified and trained personnel in accord-
ance with the safety instructions.
• All persons working on or with the pump must
have received, read and understood this operating
and maintenance manual.
• All safety devices and emergency cut-outs must
be connected and checked to ensure that they
work properly.
• Electrical engineering and mechanical adjust-
ments must be made by qualified personnel.
• The pump is suitable for use under the specified
operating conditions.
• The work area of the pump is not a recreational
area and is to be kept free of people! No persons
are allowed in the work area during start-up or
operation.
• Make sure a second person is present at all times
when you are working in wells and tanks. If there
is a risk of poisonous gases building up, make sure
that adequate ventilation is provided.

6.1. Electrical system

Connect the pump and install the power supply
cables as described in the "Installation" section
and in accordance with the VDE guidelines and
applicable national regulations.
Installation and operating instructions Wilo-Sub TWU 3/High Speed
The pump must be properly protected and
grounded.
Observe the direction of rotation. If the direction
of rotation is incorrect, the pump will not perform
as specified and may be damaged.
Make sure all monitoring devices are connected
and have been tested.
ELECTRICAL hazard!
Electrical current can cause fatal injuries if not
handled correctly! All connections must be
made by a qualified electrician.

6.2. Rotation control

Rotation is controlled via the frequency converter.
• The pump with built-in frequency converter
(TWU 3-...-HS-I) automatically turns in the right
direction.
• In the version with an external frequency con-
verter (TWU 3-...-HS-ECP), the direction of
rotation is shown on the display and can be ad-
justed from the menu. See "Setting the operating
parameters".
6.3. Operation and function (TWU 3-...-HS-ECP)
Once all the installation work is complete, the
operating parameters have to be adjusted on the
frequency converter.
These adjustments are only possible in the
"ECP" version. In the "I" version with an internal
frequency converter, no further adjustments are
possible.
Fig. 6.: Operating elements
1 Display
Green LED: mains
2
voltage
3 Red LED: error message
Yellow LED: pump's
4
operating status
5 On/Off/Reset switch
• Green LED:
The green LED lights up if the power was con-
nected correctly. If the power connection is faulty,
the LED does not light up.
• Red LED:
The red LED lights up if an error occurs. Consult
the error list to see which error has occurred.
• Yellow LED:
The yellow LED indicates the pump's operating
status. If the LED is lit up, the pump is running.
If the LED is off, the pump is in standby mode.
Overview of functions
• Constant pressure at the tap
• Soft start and stop to reduce pressure surges
• Dry-running protection in the event of low water
in the inlet
Increases the displayed
+
value
Reduces the displayed
-
value
Scrolls forward through
ƒ
the menu
Scrolls backward
‚
through the menu
English
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